GB1012857A - Liquid fuel injection pumps for internal combustion engines - Google Patents
Liquid fuel injection pumps for internal combustion enginesInfo
- Publication number
- GB1012857A GB1012857A GB20770/63A GB2077063A GB1012857A GB 1012857 A GB1012857 A GB 1012857A GB 20770/63 A GB20770/63 A GB 20770/63A GB 2077063 A GB2077063 A GB 2077063A GB 1012857 A GB1012857 A GB 1012857A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fuel
- shuttle
- pressure
- feed pump
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
- F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
- F02M41/14—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons
- F02M41/1405—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis
- F02M41/1411—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis characterised by means for varying fuel delivery or injection timing
- F02M41/1427—Arrangements for metering fuel admitted to pumping chambers, e.g. by shuttles or by throttle-valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
- F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
- F02M41/14—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons
- F02M41/1405—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis
- F02M41/1411—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis characterised by means for varying fuel delivery or injection timing
- F02M41/1416—Devices specially adapted for angular adjustment of annular cam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
- F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
- F02M41/14—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons
- F02M2041/1438—Arrangements or details pertaining to the devices classified in F02M41/14 and subgroups
- F02M2041/1455—Shuttles per se, or shuttles associated with throttle valve for metering fuel admitted to the pumping chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
- F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
- F02M41/14—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons
- F02M2041/1438—Arrangements or details pertaining to the devices classified in F02M41/14 and subgroups
- F02M2041/1472—Devices for limiting maximum delivery or for providing excess fuel for starting or for correcting advance at starting
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
1,012,857. Fuel injection pumps. C.A.V. Ltd. May 6, 1964 [May 24, 1963], No. 20770/63. Headings F1A and F1B In a fuel injection pump comprising a rotary distributor 11 having a bore 17 formed therein housing pump pistons 18, the pistons being moved outwardly by fuel fed to the bore by shuttles 27 and 28 and inwardly by a cam 20, the maximum outward movement of the shuttle 28 is determined by the output pressure of the feed pump 12. The feed pump supplies fuel alternately to opposite ends of the shuttles 27 and 28 at a pressure dependent on the speed of the engine being supplied and their outward movement is determined by a throttle 33 to a maximum determined by stops 38 and 39 respectively. The stop 38 remains fixed during operation of the pump and the stop 39, biased by a spring 41, is subject to the outlet pressure of the feed pump 12 via fuel outlet 14, Fig. 2. The stop 39 is of profiled form to reduce the maximum outward movement of the shuttle 28 as the fuel pressure increases. The outer end of the shuttle 28 is placed in communication with the inlet 13 of the feed pump during rotation of the distributor 11 and the shuttle 27 similarly by means of a passage 42a and a port 42 communicating with the outer end of the shuttle 28. At starting with zero-fuel pressure the member 39 is positioned to permit the shuttle 28 to move to the maximum extent provided a recess 43 in the member 39, the member closes the port 42 and shuttle 28 uncovers a passage 44a, Fig. 6, to allow fuel to flow directly into the bore 17 and provide excess fuel for starting. With rise in pressure the passage 44a is closed by the shuttle, the port 42 uncovered by the member 39 and the quantity of fuel delivered is governed by movement of the shuttles. The injection timing of the engine is varied by a spring-loaded piston 45, Fig. 5, subject to the outlet pressure of the feed pump.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB20770/63A GB1012857A (en) | 1963-05-24 | 1963-05-24 | Liquid fuel injection pumps for internal combustion engines |
US368593A US3194225A (en) | 1963-05-24 | 1964-05-19 | Liquid fuel injection pumps for internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB20770/63A GB1012857A (en) | 1963-05-24 | 1963-05-24 | Liquid fuel injection pumps for internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1012857A true GB1012857A (en) | 1965-12-08 |
Family
ID=10151384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20770/63A Expired GB1012857A (en) | 1963-05-24 | 1963-05-24 | Liquid fuel injection pumps for internal combustion engines |
Country Status (2)
Country | Link |
---|---|
US (1) | US3194225A (en) |
GB (1) | GB1012857A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1124301A (en) * | 1965-01-20 | 1968-08-21 | Cav Ltd | Liquid fuel injection pumps for internal combustion engines |
GB1046951A (en) * | 1964-02-25 | 1966-10-26 | Cav Ltd | Liquid fuel injection pumps for use with internal combustion engines |
DE1275829B (en) * | 1966-01-31 | 1968-08-22 | Cav Ltd | Stroke limiting stop for a metering piston of an injection pump |
GB1223118A (en) * | 1967-07-04 | 1971-02-24 | Cav Ltd | Liquid fuel injection pumping apparatus |
GB1317567A (en) * | 1969-10-03 | 1973-05-23 | Cav Ltd | Liquid fuel injection pumping apparatus |
GB1370941A (en) * | 1971-01-07 | 1974-10-16 | Lucas Industries Ltd | Rotary hydraulic machines |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3025797A (en) * | 1960-10-03 | 1962-03-20 | Cav Ltd | Liquid fuel pumps for internal combustion engines |
US3107661A (en) * | 1962-07-23 | 1963-10-22 | Cav Ltd | Liquid fuel pumps for internal combustion engines |
-
1963
- 1963-05-24 GB GB20770/63A patent/GB1012857A/en not_active Expired
-
1964
- 1964-05-19 US US368593A patent/US3194225A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3194225A (en) | 1965-07-13 |
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